//
// Created by wze-zero on 2024/8/31 031.
//
#include <iostream>

using namespace std;

int main() {
    char c;
    while (cin >> c) {
        switch (c) {
            case 'A':
            case 'a':
            case 'E':
            case 'e':
            case 'I':
            case 'i':
            case 'O':
            case 'o':
            case 'U':
            case 'u':
                cout << "Vowel" << endl;
                break;
            default:
                cout << "Consonant" << endl;
        }
    }
    return 0;
}